1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d5babf07f3bcf52f589db424d156da4a1ac6f022bbea7c186aedb1c0900be4. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/92faacf4-0e96-480d-b146-76a5e4c18436.json and https://artists.proofprofile.net/proofs/artist/92faacf4-0e96-480d-b146-76a5e4c18436.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f26d68e2d19df72a7f9599efb4fbfc35c83044793b9a22e3a8b18ff36c26bc5. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USASN1602664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64b88510a0bf6bcf80bab668f506c0ff7d709bff6acce43ea96e4084b92bc206. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USASN1602669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba96d8a610b7bb624a8e9a5f95872d2e0128feb6762c97af774774a74d070bb4. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USASN1602672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a3996e4491123cc51378c521a00a41259c20aecbe569e63fb4332eca998172e. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USASN1602675.
Wicked Minds Presents: Gangster By Blood
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ddc140a4183c37848ad9feddf7705752e11b5e603d55d91e13a277de0222331. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USPRZ0810004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8370579773cc2ff4c0b082fc7e863e34821b33fde5e0be9ffb961478e3222196. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USPRZ0810012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ac57f8dba743ba1304c4035f219aeb09e39ddbdbc2db3dee502fd459800319d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USPRZ0810015.
Take You There First Single of "Slow It Down" Album
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc0d440b2d25905e5364c72a752748f5cf01ad6c03dd9975bd32206227f5ce4e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USPRZ0910178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb70ddaf4c07c54ffb2b8b3be05c4f28e49f1bbe9ad832c5fc4f970b2ca337771. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USPRZ0910179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf06298370dcee82e89559373977d853519a885e7515a75ef3fe47107b7b698c6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USPRZ0910180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc61cef2c87dd1f7c7dd041c5d128a07760bf1ccff360aa9a0da3fb538bbdabfb. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USPRZ0910181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cda8ef79f9725270303ec3fde9ab3edc7b999166bfc95428627e98275431a17. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USPRZ0910184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9021fa6e88c63382ffd082ac7b646cb6266da1813bc5120e637f363198a15aa4. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USPRZ0910188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x115eafe595035496e586dd423f1db497c0664191a620b08bfe56ecd734b24c14. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USPRZ1100159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x576010f01c8a8432039bc28daffbbdda19864ee8c702647dd994f8cab0df7fca. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMG1303730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22768b62a462ad173865c81e7be975955024fa253e1b921279ca3fb788027bf7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMG1303732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeca310db01fcaa428cf471f800d6025aa504aff7adb6cf3dbb178cb3bb6bbad6. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMG1303745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1783f1ce05fe2af1d955f768531a0b81f165f58967693db7cbae6aabbe4107bf. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMG1303735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eea50130af363efc7339a22d3d06385d138609d09181528335dca8352defbb6. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMG1303736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d5331194e2c557bbd8ce2fa49a5d409414247b07fa51194f09f6a3f233c94dc. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMG1303738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62f3c440d4140b83ba735664d23d9c78e88bf93fa634ecd447d87a527ede7cc7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMG1303739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d411238abcdf90f12a918709bf08245e778759d34bd9b39de77807533ebfc3c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMG1303733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2773c79f8df05a5247879bfe5abe1b88dbe935ab7e3a877220d424f9fb8468a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW1954646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c916765555ec7eadac0109a07048448f127cf8a61ef91292859dabdd14a972. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW1954653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07754b86cdd624fdaa6cf21c950ca05f7534138ecdf5d5a138730cf200d0698f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW1954647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e4492b8f0f7cab1279f96ba46b5c062ff60a39902bd6a5de19d2a7cf0f2e39e. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW1954648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4081d6d2d3cdb7482494c6518c0ec73f6c51f01f73d5da9cb2bbb4daf8cc8384. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T13:02:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N22230620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4229abbb32110293b9cea6625dacceb1b6e2976aea3dd560a8133285e3cc5791. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW1954654.